Engine oil light

Asked by GuruBLFLZ Dec 30, 2018 at 06:51 PM about the 1999 Pontiac Grand Prix 4 Dr GTP Supercharged Sedan

Question type: Maintenance & Repair

I have a 1999 Pontiac Grand Prix got
supercharged with the oil light on all gauges are
normal oil is blacker that black is that cause
enough for this to happen getting oil changed
tomorrow

It only stays on when I idle when I speed up past
25 goes away

1 Answer
42,930

Hornet_2497 answered 5 years ago

If your oil is that black, it may have thinned out to the point it can barely maintain enough oil pressure to keep the warning light from coming on at idle speed. Also check if your oil level is too low. If it's not yet ticking and clicking, drive it to your oil change and see if that fixes it. If you car has like 150K miles or more, you might go to a heavier oil like 10w/40 maybe. Then if your oil light still flickers it might be the oil pressure sender at fault. The oil filter was probably dirty too.

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